Posts tagged with “John Lancione”

The Aerocomp DDC

The Aerocomp DDC was a popular double-density add-on for the TRS‑80 Model I. It was introduced in 1981 by Aerocomp Inc. of Dallas, Texas, a company founded by John Lancione. Aerocomp was one of the longest lasting TRS‑80 companies and the Aerocomp DDC was sold for almost a decade.

When it was introduced, the Aerocomp DDC cost $149.95. This was $20 cheaper than its primary competitor, the Percom Doubler II.

The Holmes VID-80

The Holmes VID-80 was a popular add-on for the TRS‑80 Model I and III. Introduced by Holmes Engineering, Inc. in 1982, the VID-80 offered two related features:

It expanded the TRS‑80 screen from 64 characters wide by 16 characters high to the larger 80 characters wide by 24 characters wide.
It changed the TRS‑80 memory map to allow running the CP/M operating system.